Model comparison
MiMo-V2-Flash vs Muse Spark 1.3
Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 41.3 on the Noometry Index. MiMo-V2-Flash costs 11× less per token, which makes it the better buy when Muse Spark 1.3's lead doesn't matter for your workload.
Last verified . 20 shared benchmarks.
MetaSummary
- They share 20 benchmarks with published results for both. MiMo-V2-Flash scores higher in 0 categories and Muse Spark 1.3 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Muse Spark 1.3 leads 73.1 to 38.3.
- The biggest single-benchmark swing is SciCode: 25.9% for MiMo-V2-Flash and 59.7% for Muse Spark 1.3.
- MiMo-V2-Flash is cheaper at $0.14 / $0.28 per million input/output tokens, against $1.25 / $4.25 for Muse Spark 1.3.
- Muse Spark 1.3 accepts more context: 1.05M tokens versus 262K.
- MiMo-V2-Flash has downloadable open weights; the other is API-only.
Side by side
| MiMo-V2-Flash | Muse Spark 1.3 | |
|---|---|---|
| Provider | Xiaomi | Meta |
| Noometry Index | 41.3 | 54.8 |
| Released | 2025-12-16 | 2026-09-02 |
| Weights | Open | Proprietary |
| Context window | 262K | 1.05M |
| Max output | 66K | 131K |
| Input $ / M tokens | $0.14 | $1.25 |
| Output $ / M tokens | $0.28 | $4.25 |
| Results tracked | 21 | 37 |
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Category by category
Coding Muse Spark 1.3 leads
MiMo-V2-Flash: 36.1 (#211), Muse Spark 1.3: 56.6 (#21)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena WebDev | 1330 | 1657 |
| SciCode | 25.9% | 59.7% |
| LMArena Coding | 1443 | 1514 |
| CursorBench | — | 41.6% |
| ALE-Bench | 737.95 | — |
Agentic & Tool Use Not comparable
MiMo-V2-Flash: —, Muse Spark 1.3: 38.6 (#30)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| APEX-Agents | — | 57.8% |
| GDP.pdf | — | 27.6% |
Reasoning Muse Spark 1.3 leads
MiMo-V2-Flash: 24.9 (#157), Muse Spark 1.3: 54.0 (#27)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| CritPt | 0% | 26% |
| LMArena Hard Prompts | 1420 | 1503 |
| NYT Connections (extended) | — | 85.1% |
| Chess Puzzles | — | 38% |
| Mystery Game Puzzles | — | 25% |
| DTBench | — | 96.5% |
| LMCA | — | 53.9% |
| Bench to the Future 3 | — | 0.14 |
| Epoch Capabilities Index | — | 156.75 |
Math Muse Spark 1.3 leads
MiMo-V2-Flash: 38.3 (#139), Muse Spark 1.3: 73.1 (#21)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena Math | 1396 | 1494 |
| FrontierMath (Tiers 1-3) | — | 74.4% |
| FrontierMath Tier 4 | — | 46.3% |
| OTIS Mock AIME 2024-2025 | — | 99.2% |
| ProofBench | — | 58% |
Knowledge Muse Spark 1.3 leads
MiMo-V2-Flash: 39.7 (#131), Muse Spark 1.3: 42.6 (#95)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena Expert | 1425 | 1516 |
Multimodal Not comparable
MiMo-V2-Flash: —, Muse Spark 1.3: 43.7 (#22)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena Vision | — | 1309 |
| LMArena Document | — | 1471 |
Multilingual Muse Spark 1.3 leads
MiMo-V2-Flash: 51.0 (#113), Muse Spark 1.3: 57.4 (#8)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena Non-English | 1392 | 1481 |
| LMArena Chinese | 1462 | 1529 |
| LMArena French | 1429 | 1524 |
| LMArena German | 1395 | 1515 |
| LMArena Japanese | 1325 | 1474 |
| LMArena Korean | 1358 | 1501 |
| LMArena Russian | 1387 | 1490 |
| LMArena Spanish | 1420 | 1490 |
Instruction Following Muse Spark 1.3 leads
MiMo-V2-Flash: 73.5 (#120), Muse Spark 1.3: 77.5 (#22)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena Instruction Following | 1392 | 1477 |
Long Context Muse Spark 1.3 leads
MiMo-V2-Flash: 43.0 (#110), Muse Spark 1.3: 45.6 (#32)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena Longer Query | 1409 | 1488 |
Writing & Preference Muse Spark 1.3 leads
MiMo-V2-Flash: 59.7 (#106), Muse Spark 1.3: 73.6 (#9)
| Benchmark | MiMo-V2-Flash | Muse Spark 1.3 |
|---|---|---|
| LMArena Text | 1411 | 1490 |
| LMArena Creative Writing | 1375 | 1455 |
| LMArena Multi-Turn | 1404 | 1482 |
| EQ-Bench Creative Writing | — | 1906 |
Frequently asked questions
Is MiMo-V2-Flash better than Muse Spark 1.3?
Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 41.3 on the Noometry Index. MiMo-V2-Flash costs 11× less per token, which makes it the better buy when Muse Spark 1.3's lead doesn't matter for your workload.
Which is cheaper, MiMo-V2-Flash or Muse Spark 1.3?
MiMo-V2-Flash is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Muse Spark 1.3 lists at $1.25 and $4.25.
Is MiMo-V2-Flash or Muse Spark 1.3 better for coding?
Muse Spark 1.3 scores higher on coding benchmarks: 56.6 versus 36.1 in the Noometry coding category.
Which has the bigger context window?
Muse Spark 1.3 does, with 1.05M tokens against 262K.
How many benchmarks do MiMo-V2-Flash and Muse Spark 1.3 share?
20 benchmarks have published results for both models. MiMo-V2-Flash has 21 scored results on Noometry and Muse Spark 1.3 has 37.